1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2014 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include <netinet/in.h>
30 typedef struct DnsResourceKey DnsResourceKey;
31 typedef struct DnsResourceRecord DnsResourceRecord;
33 /* DNS record classes, see RFC 1035 */
39 /* DNS record types, see RFC 1035 */
44 DNS_TYPE_CNAME = 0x05,
47 DNS_TYPE_HINFO = 0x0D,
52 DNS_TYPE_SSHFP = 0x2C,
53 DNS_TYPE_DNAME = 0x27,
57 DNS_TYPE_OPT = 0x29, /* EDNS0 option */
64 struct DnsResourceKey {
67 char *_name; /* don't access directy, use DNS_RESOURCE_KEY_NAME()! */
70 struct DnsResourceRecord {
81 /* uint16_t priority; */
82 /* uint16_t weight; */
101 struct in_addr in_addr;
105 struct in6_addr in6_addr;
110 static inline const char* DNS_RESOURCE_KEY_NAME(const DnsResourceKey *key) {
111 if (_unlikely_(!key))
117 return (char*) key + sizeof(DnsResourceKey);
120 DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name);
121 DnsResourceKey* dns_resource_key_new_consume(uint16_t class, uint16_t type, char *name);
122 DnsResourceKey* dns_resource_key_ref(DnsResourceKey *key);
123 DnsResourceKey* dns_resource_key_unref(DnsResourceKey *key);
124 int dns_resource_key_equal(const DnsResourceKey *a, const DnsResourceKey *b);
125 int dns_resource_key_match_rr(const DnsResourceKey *key, const DnsResourceRecord *rr);
126 int dns_resource_key_match_cname(const DnsResourceKey *key, const DnsResourceRecord *rr);
127 unsigned long dns_resource_key_hash_func(const void *i, const uint8_t hash_key[HASH_KEY_SIZE]);
128 int dns_resource_key_compare_func(const void *a, const void *b);
129 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey*, dns_resource_key_unref);
131 DnsResourceRecord* dns_resource_record_new(DnsResourceKey *key);
132 DnsResourceRecord* dns_resource_record_ref(DnsResourceRecord *rr);
133 DnsResourceRecord* dns_resource_record_unref(DnsResourceRecord *rr);
134 int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b);
135 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord*, dns_resource_record_unref);
137 const char *dns_type_to_string(uint16_t type);
138 const char *dns_class_to_string(uint16_t type);